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Completed

NCT Number: NCT01770652

An Open-label, Non-randomized, Parallel Group Study in Subjects With Mild, Moderate, Severe, or No Renal Impairment

Multi-center, non-randomized, open-label, single-dose, parallel group study to determine the effect of impaired renal function on the PK of deferiprone and its 3-O-glucuronide metabolite following a single oral dose of 33mg/kg Ferriprox®.

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Key information

Age range

18 year–75 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 4

Primary location

Hôpital Maisonneuve-Rosemont, Montreal, Quebec, Canada

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About this study

Post-marketing study to evaluate the effect of impaired renal function on the pharmacokinetics (PK) of deferiprone and its 3-O-glucuronide metabolite and on the safety of Ferriprox® in subjects with mild, moderate and severe renal impairment as compared to healthy volunteers.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Main Inclusion Criteria:

All subjects:

  • Adult males or females, 18 - 75 years of age (inclusive);
  • Body weight ≥ 45 kg;
  • Body mass index (BMI) range of approximately 18.5-32 kg/m^2 (inclusive);
  • Absolute neutrophil count (ANC) of >1.5x10^9/L;

Healthy volunteers:

  • Medically healthy with clinically insignificant screening results (e.g., laboratory profiles, medical history, vital signs, physical examination);
  • eGFR ≥ 90 mL/min/1.73m^2;

Renally impaired subjects:

  • Considered clinically stable in the opinion of the Investigator;
  • Subjects with mild renal impairment (eGFR 60-89 mL/min/1.73m^E2) OR moderate renal impairment (eGFR 30-59 mL/min/1.73m^2) OR severe renal impairment (eGFR 15-29 mL/min/1.73m^2).

Main Exclusion Criteria:

  • History of renal transplant;
  • Subjects undergoing any method of dialysis;
  • History or presence of clinically unstable significant respiratory, cardiovascular, pulmonary, hepatic, renal (except for subjects assigned to one of the renally impaired groups), hematologic, gastrointestinal, endocrine, immunologic, dermatologic, neurologic, or psychiatric disease;
  • Disorders or surgery of the gastrointestinal tract which may interfere with drug absorption or may otherwise influence the PK of the investigational medicinal product (e.g. cholecystectomy, resections of the small or large intestine, febrile conditions, chronic diarrhea, chronic vomiting, endocrine disease, severe infections, acute inflammations, etc.);
  • Clinically significant abnormalities on 12-lead ECG (e.g., QTcF≥430 ms in males or ≥450 ms in females);
  • Evidence of liver damage: hepatitis B and C; aspartate aminotransferase (AST), alanine aminotransferase (ALT) that is considered clinically significant by the Investigator;
  • Participation in another clinical trial within 28 days prior to the study drug administration;

Treatment and study plan

Deferiprone

Drug

Oral iron chelator

Other names: Ferriprox, L1, DFP

Primary outcomes

  1. Cmax for Serum Deferiprone and Deferiprone 3-O-glucuronide

    Time frame: 24-hour interval

    Cmax was assessed over a 24-hour interval for analyses of deferiprone and its 3-O-glucuronide metabolite in subjects with normal, mild, moderate and severe renal impairment. Blood samples were obtained prior to dosing and at 0.25, 0.50, 0.75, 1, 1.33, 1.66, 2, 2.5, 3, 4, 6, 9, 12, 16, and 24 hours post-dose.

  2. Tmax for Serum Deferiprone and Deferiprone 3-O-glucuronide

    Time frame: 24 hour interval

    Tmax was assessed over a 24-hour interval for analyses of deferiprone and its 3-O-glucuronide metabolite. Blood samples were obtained prior to dosing and at 0.25, 0.50, 0.75, 1, 1.33, 1.66, 2, 2.5, 3, 4, 6, 9, 12, 16, and 24 hours post-dose.

    The results of the Tmax parameter are reported as the median and range (other parameters are reported as mean and standard deviation).

  3. AUC Zero to Infinity (AUC0-∞) for Serum Deferiprone and Deferiprone 3-O-glucuronide

    Time frame: 24 hour interval

    AUC0-∞ was assessed over a 24-hour interval for analyses of deferiprone and its 3-O-glucuronide metabolite. Blood samples were obtained prior to dosing and at 0.25, 0.50, 0.75, 1, 1.33, 1.66, 2, 2.5, 3, 4, 6, 9, 12, 16, and 24 hours post-dose.

  4. T1/2 for Serum Deferiprone and Deferiprone 3-O-glucuronide

    Time frame: 24 hour interval

    T1/2 was assessed over a 24-hour interval for analyses of deferiprone and its 3-O-glucuronide metabolite. Blood samples were obtained prior to dosing and at 0.25, 0.50, 0.75, 1, 1.33, 1.66, 2, 2.5, 3, 4, 6, 9, 12, 16, and 24 hours post-dose.

  5. Ae24 for Urine Deferiprone and Deferiprone 3-O-glucuronide

    Time frame: 24 hour interval

    Ae24 (the amount excreted in urine from time zero to 24 hours) was assessed over a 24-hour interval for analyses of deferiprone and its 3-O-glucuronide metabolite. Urine samples were collected at the intervals of -2 to 0 hours pre-dose and 0 to 2, 2 to 4, 4 to 8, 8 to 12, and 12 to 24 hours post-dose.

  6. Fe24 for Serum Deferiprone and Deferiprone 3-O-glucuronide

    Time frame: 24-hour interval

    Fe24 (fraction of dose excreted in urine from time zero to 24 hours) was assessed over a 24-hour interval for analyses of deferiprone and its 3-O-glucuronide metabolite. Urine samples were collected at the intervals of -2 to 0 hours pre-dose and 0 to 2, 2 to 4, 4 to 8, 8 to 12, and 12 to 24 hours post-dose.

    Some of the Fe24 values were over 100% which could be explained by variability in urine collection (e.g. incomplete collection of urine into the container) and volume measurement, as well as analytical imprecision.

Secondary outcomes

  1. Safety and Tolerability of Ferriprox® in Subjects With Renal Impairment.

    Time frame: From time of dosing until 72 hours post-dose

    The number of participants who experienced adverse events (including any changes of clinical significance in physical examinations, vital signs, 12-lead ECG, and clinical laboratory tests) following a single dose of Ferriprox.

Sponsors and collaborators

Lead sponsor

ApoPharma

Industry

Registry information

Official study title

An Open-label Study to Compare the Pharmacokinetic Profiles of a Single Dose of Ferriprox in Subjects With Impaired Renal Function and Healthy Volunteers

Important dates

Study start
2013
Primary completion
2013
Study completion
2013
First posted
Jan 18, 2013
Registry last updated
Aug 26, 2014

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

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This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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